Raising Book Resources
Raising Hope for the 2021 Monarch Migration- Raise The Migration Results
Raise The Migration is an annual North American challenge to raise monarch butterflies to release for fallโs annual monarch migration. The time has come to share your 2021 experience and raise it forwardโฆ
The raising season is coming to an end, so weโd love to hear how many butterflies you released for fallโs annual 2021 monarch migrationโฆand more importantly, what lessons youโve learned through this amazing raising experience?
If youโve still got some raising to do, raise on! But please post in the comment box at the bottom of this page after youโve released your last butterfly.
Every year, I start Raise The Migration in July, but monarchs raised at that time arenโt actually migration generation butterfliesโฆtheyโre the parents to that amazing generation of travelers.
Thereโs no way to tell whether butterflies will mate or migrate, but one telltale sign of a migration generation butterfly is its size, which is dependent on how much the caterpillar eats. The first super-sized caterpillars start to form chrysalides around the first week of September in our northern regionโฆ
In the garden, you can tell non-migratory butterflies by their worn out wings. Non-migratory males are also more aggressive, chasing off potential competition while seeking out female companionshipโฆmigratory monarchs are in sexual diapause and only interested in stocking up on nectar for the long journey ahead.
So how did our Raise The Migration Monarchs fare this season and what lessons did we learn raising forward?
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If youโre interested in a step-by-step guide digital guide with free updates (before each monarch season begins in spring) please check out the monarch raising guide by clicking this butterfly photo:
For anyone who purchases the guide (or any other item) from Monarch Butterfly Life, you will be invited to our closed facebook group where you can discuss raising monarchs with other raisers and post your photos.
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Here are Raise the Migration results from the pastย eight seasons:
2020- 82% survival rate
2019- 81% survival rate
2018- 93% survival rate
2017- 100% survival rate
2016- 96% survial rate
2015- 96% survival rate
2014- 90% survival rate
2013- 100% survival rate
As you can see from the results, this raising system is consistently producing healthy monarchs to help support the struggling monarch population.
Raise The Migration 2021 Results
I released 15 healthy monarchs (14 females and 1 male) from July 29th to August 16th with a 100% survival rate. I am fairly certain all of these butterfliesย wereย parents to the migration generation.ย
The seven monarchs we raised after that,ย were counted as our official Raise The Migration monarchs for 2021...
Caterpillar Escapes
By keeping monarch eggs and baby caterpillars in sealed food containers, and raising larger caterpillars in the mesh cages, we never lose caterpillars.ย
I think the closest we have come was two years ago when I forgot to close a cage door and found a caterpillar crawling on top of the cage. ๐ ๐ฑ
Unexplained Caterpillar Deaths
We didn't have any unexplained monarch deaths in 2021.
Caterpillar Diseases and Parasites?
I'm happy to report no disease issues in 2021. All of our raise the migration participants were brought in as eggs so no issues with tachinid flies...a couple eggs were parasitized by trichogramma wasps,ย and we discarded those eggs when they darkened and never hatched.ย
Accidental Deaths?
We experienced one accidental (and completely preventable) accidental death. See the Butterfly Eclosure section below for more details...
Chrysalis Problems
No chrysalis issues to report in 2021...
Community member Jude R. recently used the microfiber method to rehang one of her fallen chrysalides:
Jude reports: There was zero silk and I wasn't sure what to do. Your tip worked and just in time. I was a little worried the bfly's feet would get stuck in the microfiber, but it had zero problems.ย
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Butterfly Eclosures
We had oneย eclosure disaster this year. An early morning butterfly (emerged from chrysalis before 7am) fell from our kitchen overhang on to the floor.
Sheย lost a lot of fluids from her abdomen when this happened.ย Herย wings recovered 'somewhat' when I hung her from inside a mesh cage, but she was injured badly from the fall on to the wood floor, which is about a 7 foot drop.ย
Starting in 2022, we will no longer rehang chrysalides on our overhang. It's much safer to rehang them inside the cageย where they can crawl up a mesh wall after falling a much shorter distance.ย
Final Results
Our totals are from all eggs that have successfully hatched. We don't count eggs that were parasitized outside or monarchs brought in as caterpillarsย because they could have parasites too.
Sevenย monarch butterflies emerged from their chrysalides between August 29th and October 5th:ย
1ย accidental death (butterfly fall)
0ย disease or parasite issues
0ย unexplained deaths
4ย healthy males
2ย healthy females
86% survival rate
Lessons Learned?
Chrysalides should always be kept in a cage or somewhere where the butterfly has a chance to climb to safety if it falls after it emerges. In my experience butterflies rarely fall, but it can happen.ย
Migration Memory 2021
I came across these mating monarchs in our Minnesota garden on September 19th when it was an unseasonable 90ยฐ:
Before 2021, I had never seenย mating past the first week of September in our region.ย
I hope you enjoyed reading about my Raise The Migration '21 results and lessons learned raising monarchs through the butterfly life cycle .
And now, I'd love to hear about your experience...
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Share Your Results?! โ๏ธ
Please share your results below by letting us know how many monarchs you released to help boost the struggling monarch populationโฆremember to include your location.
More importantly, please share the most valuable lesson(s) you learned about raising monarch butterflies, that you believe can help others raising forward.
Thank you for helping to Raise the Migration in 2021
338 comments
I released 90 monarchs this year, my last release being 10-12-21. My monarchs were a combination of captured cats and eggs. I lost five of the last six chrysalides due to a t-fly maggot. I learned that the smaller the cat, the better the survival rate. I live in east central Iowa, about 15 minutes west of the Mississippi, This is my 3rd year of raising monarchs. I found no swallowtail cocoons this year. Thanks for your posts.
Released 51 Monarchs: 34 females/17 males
Final release on September 23,2021
Lost 16 to tachnids and OE.
Location: Arcola, IL
I raised 468 healthy butterflies. I lost approx 25 to bacterial infections and T-fly.
I appreciate your honesty, but it was in your book that they need protection if they fall off their chrysalis and a way to climb back up! So why take the chance in the first place of hanging them high over a hard surface? Also, should an insect get in your house, they arenโt safe outside of a cage. One lepidoptrist (sp?) I talked to said he had a cage with a potted plant outside in the shade and a caterpillar crawling on the (inside) walls of the cage was stung by a wasp just b/c wasps are mean!
Weโre located in Massachusetts and successfully released 70 monarchs this summer/fall. We only had 2 mishaps- one when I didnโt check the zipper before opening the enclosure and another when my dog was too curious about a just released butterfly. I feel bad about the 2 that didnโt make it but can avoid those mistakes next year and hope the 70 that did make it out help the population!